Optimized storage condition of deep ice core samples from the viewpoint of air-hydrate analysis

Experimental data on the dissociation rate of air-hydrate crystals in Vostok cores, Antarctica, and Dye-3 cores, Greenland, during their long term storage revealed that dissociation of the crystals affected the volume expansion of deep ice cores. The temperature dependence of the dissociation rate o...

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Bibliographic Details
Main Authors: Tsutomu Uchida, Takeo Hondoh, Shinji Mae, Hitoshi Shoji, Nobuhiko Azuma
Format: Report
Language:English
Published: Hokkaido National Industrial Research Institute/The Institute of Low Temperature Science, Hokkaido University/Faculty of Engineering, Hokkaido University/Kitami Institute of Technology/Nagaoka Technology and Science Institute 1994
Subjects:
Greenland
Antarc*
Antarctica
Dye 3
Dye-3
ice core
Memoirs of National Institute of Polar Research
Polar Research
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2235
http://id.nii.ac.jp/1291/00002235/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2235&item_no=1&attribute_id=18&file_no=1
Description
Summary:Experimental data on the dissociation rate of air-hydrate crystals in Vostok cores, Antarctica, and Dye-3 cores, Greenland, during their long term storage revealed that dissociation of the crystals affected the volume expansion of deep ice cores. The temperature dependence of the dissociation rate of the air-hydrate crystals determines the optimized storage temperature and the time period for both the transportation of ice cores and their long storage plans. The results also suggest that deep ice cores should be stored in the shape of bulk samples to prevent the from dissociating, including the air-hydrate crystals.

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